newbie, problem with DSL install

Got a problem with a DSL install. D/l 2.2RC1.iso last nite and burned a cd. Put the boot pgm on a floppy. Have an older dell (max 48m ram) trying to put it on. The DSL starts, but returns error msg 'can't find KNOPPIX file system, sorry. dropping you to a (very limited) shell. press reset button to quit. Any thought other than shooting the Dell?